EP1532764A1 - Method and arrangement for reducing phase jumps when switching between synchronisation sources - Google Patents
Method and arrangement for reducing phase jumps when switching between synchronisation sourcesInfo
- Publication number
- EP1532764A1 EP1532764A1 EP02755999A EP02755999A EP1532764A1 EP 1532764 A1 EP1532764 A1 EP 1532764A1 EP 02755999 A EP02755999 A EP 02755999A EP 02755999 A EP02755999 A EP 02755999A EP 1532764 A1 EP1532764 A1 EP 1532764A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- reference signal
- frequency
- master
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
- H04J3/0688—Change of the master or reference, e.g. take-over or failure of the master
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Time-Division Multiplex Systems (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/NO2002/000304 WO2004021636A1 (en) | 2002-08-30 | 2002-08-30 | Method and arrangement for reducing phase jumps when switching between synchronisation sources |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1532764A1 true EP1532764A1 (en) | 2005-05-25 |
EP1532764B1 EP1532764B1 (en) | 2009-03-11 |
Family
ID=31973752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02755999A Expired - Lifetime EP1532764B1 (en) | 2002-08-30 | 2002-08-30 | Method and arrangement for reducing phase jumps when switching between synchronisation sources |
Country Status (8)
Country | Link |
---|---|
US (1) | US7155191B2 (en) |
EP (1) | EP1532764B1 (en) |
CN (1) | CN100393024C (en) |
AT (1) | ATE425606T1 (en) |
AU (1) | AU2002321951A1 (en) |
DE (1) | DE60231563D1 (en) |
RU (1) | RU2288543C2 (en) |
WO (1) | WO2004021636A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7747237B2 (en) * | 2004-04-09 | 2010-06-29 | Skyworks Solutions, Inc. | High agility frequency synthesizer phase-locked loop |
CN1848713B (en) * | 2005-11-17 | 2010-08-11 | 华为技术有限公司 | Time division multiplexing system minor node frame synchronization realizing method and apparatus |
DE102006024470B4 (en) * | 2006-05-24 | 2015-07-09 | Xignal Technologies Ag | Switchable phase-locked loop and method for operating a switchable phase-locked loop |
DE102007046300A1 (en) * | 2007-07-26 | 2009-01-29 | Rohde & Schwarz Gmbh & Co. Kg | Method for synchronizing a plurality of measuring channel assemblies and / or measuring devices and corresponding measuring device |
US7902886B2 (en) * | 2007-10-30 | 2011-03-08 | Diablo Technologies Inc. | Multiple reference phase locked loop |
RU2665241C1 (en) * | 2017-10-13 | 2018-08-28 | Геннадий Сендерович Брайловский | Frequency tuning method and phase detector |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK138196A (en) * | 1996-12-04 | 1998-06-05 | Dsc Communications As | Method and circuit for generating a system clock signal |
US6087920A (en) * | 1997-02-11 | 2000-07-11 | Pulse Engineering, Inc. | Monolithic inductor |
US5909149A (en) * | 1997-08-29 | 1999-06-01 | Lucent Technologies, Inc. | Multiband phase locked loop using a switched voltage controlled oscillator |
JP3237637B2 (en) * | 1999-01-05 | 2001-12-10 | 日本電気株式会社 | Clock synchronization circuit |
CN1160862C (en) * | 1999-12-29 | 2004-08-04 | 上海贝尔有限公司 | Method for controlling clock signal phase transient on switching and its device |
JP4228518B2 (en) * | 2000-06-09 | 2009-02-25 | パナソニック株式会社 | Digital PLL device |
US6489852B1 (en) * | 2000-07-20 | 2002-12-03 | Marconi Communications, Inc. | Slew controlled frame aligner for a phase locked loop |
CA2324535A1 (en) * | 2000-10-27 | 2002-04-27 | Pmc-Sierra Inc. | Adaptive phase shift filtration of pointer justification jitter in synchronous-plesiosynchronous signal desynchronization |
DE10123932B4 (en) * | 2001-05-11 | 2005-03-24 | Siemens Ag | Method for generating an internal clock in an electrical circuit and corresponding electrical circuit with a central clock generator |
JP3531630B2 (en) * | 2001-08-07 | 2004-05-31 | 日本電気株式会社 | Clock generation circuit |
US6621304B2 (en) * | 2001-11-06 | 2003-09-16 | Infineon Technologies Aktiengesellschaft | Clocking and synchronization circuitry |
US6999480B2 (en) * | 2001-11-26 | 2006-02-14 | Applied Micro Circuits Corporation | Method and apparatus for improving data integrity and desynchronizer recovery time after a loss of signal |
EP1467488B1 (en) * | 2002-01-16 | 2007-04-11 | Mitsubishi Denki Kabushiki Kaisha | Clock generating circuit |
-
2002
- 2002-08-30 EP EP02755999A patent/EP1532764B1/en not_active Expired - Lifetime
- 2002-08-30 US US10/521,388 patent/US7155191B2/en not_active Expired - Lifetime
- 2002-08-30 WO PCT/NO2002/000304 patent/WO2004021636A1/en not_active Application Discontinuation
- 2002-08-30 CN CNB028295102A patent/CN100393024C/en not_active Expired - Fee Related
- 2002-08-30 RU RU2005108980/09A patent/RU2288543C2/en not_active IP Right Cessation
- 2002-08-30 AT AT02755999T patent/ATE425606T1/en not_active IP Right Cessation
- 2002-08-30 AU AU2002321951A patent/AU2002321951A1/en not_active Abandoned
- 2002-08-30 DE DE60231563T patent/DE60231563D1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004021636A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2002321951A1 (en) | 2004-03-19 |
RU2005108980A (en) | 2005-08-27 |
CN100393024C (en) | 2008-06-04 |
EP1532764B1 (en) | 2009-03-11 |
WO2004021636A1 (en) | 2004-03-11 |
US20050245223A1 (en) | 2005-11-03 |
CN1650567A (en) | 2005-08-03 |
US7155191B2 (en) | 2006-12-26 |
ATE425606T1 (en) | 2009-03-15 |
RU2288543C2 (en) | 2006-11-27 |
DE60231563D1 (en) | 2009-04-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1867092B1 (en) | Data cleaning with an asynchronous reference clock | |
US5373254A (en) | Method and apparatus for controlling phase of a system clock signal for switching the system clock signal | |
RU2468521C1 (en) | Method and device of time synchronisation | |
US7200767B2 (en) | Maintaining synchronization of multiple data channels with a common clock signal | |
US7426247B2 (en) | Multi-channel serdes receiver for chip-to-chip and backplane interconnects and method of operation thereof | |
US9609610B2 (en) | Synchronization distribution in microwave backhaul networks | |
US8321717B2 (en) | Dynamic frequency adjustment for interoperability of differential clock recovery methods | |
US7242740B2 (en) | Digital phase-locked loop with master-slave modes | |
EP2976851B1 (en) | Method and apparatus for implementing clock holdover | |
US7155191B2 (en) | Method and arrangement for reducing phase jumps when switching between synchronization sources | |
EP1030451B1 (en) | Phase-locked loop | |
EP1493233B1 (en) | Selectable clocking architecture | |
US7391838B2 (en) | Transceiver system and method supporting multiple selectable voltage controlled oscillators | |
US11967965B2 (en) | Generating divided signals from phase-locked loop (PLL) output when reference clock is unavailable | |
US20040057547A1 (en) | Fractional frequency clock signal synthesizer and method of operation thereof | |
US5095289A (en) | Adjustable crystal controlled oscillator | |
EP0943193B1 (en) | A method and a circuit for generating a central clock signal | |
EP0868783A1 (en) | Procedure and circuit for holding lock state in a digital pll | |
JPH05183586A (en) | Data device connection unit | |
JP2001203599A (en) | Pll controller |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20050224 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20061219 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WEGO, ARILD Inventor name: HELLUM, PAL, LONGVA |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 60231563 Country of ref document: DE Date of ref document: 20090423 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090611 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090824 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090622 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090611 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 |
|
26N | No opposition filed |
Effective date: 20091214 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090831 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090831 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090830 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090612 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090830 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090311 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20150827 Year of fee payment: 14 Ref country code: DE Payment date: 20150827 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20150817 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20150825 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60231563 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20160830 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170301 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160830 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160830 |